.video-container {
    position: relative !important;
    padding-bottom: 56.25% !important;
    padding-top: 30px !important; 
    height: 0  !important; 
    overflow: hidden  !important;
    margin-bottom: 0.75em !important;
}

.video-container iframe,
.video-container object,
.video-container embed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}